Powder Coating

Powder coating utilizes a dry-coating process which does not require a solvent to keep a binder and/or filler in a liquid suspension. The application uses compressed air to push the powder out of a gun, much the same way a sandblaster works. The powder is moved past an electrode that gives it a charge while inside the nose piece. The part that is to be coated is grounded so that the positively charged powder will now stick to the part. When there is sufficient coverage, the part is removed from the chamber, the ground is disconnected and the part is baked. Powder coating can also be used in a chamber or booth configuration, rather than a coating gun. Powder coating is used when a thicker coating needs to be applied to limit hazardous materials and/or if a part is particularly well-suited for this method of application.

 


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